What is CVE-2021-25786?

CVE-2021-25786 is a medium-severity vulnerability in Qpdf Project, classified under Use After Free. CVSS score: 5.3/10. Published 2023-08-11.

How severe is CVE-2021-25786?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-25786 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Qpdf Project

CVE-2021-25786

An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via crafted .pdf file to Pl_ASCII85Decoder::write parameter in libqpdf.

Vulnerability class: Use-After-Free

EPSS: 0.005 (40.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

Affected products

Qpdf_project Qpdf — versions 10.0.4
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Exploit, Patch, Issue Tracking)
cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-25786?: CVE-2021-25786 is a medium-severity vulnerability in Qpdf Project, classified under Use After Free. CVSS score: 5.3/10. Published 2023-08-11.
How severe is CVE-2021-25786?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-25786 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.